package com.tjbklx1.thread.new5.demo03.callable;

import java.util.Random;
import java.util.concurrent.Callable;
import java.util.concurrent.CompletionService;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorCompletionService;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class CallableTest {
	public static void main(String[] args) {
		test2();
	}

	private static void test2() {
		ExecutorService threadPool2 =  Executors.newFixedThreadPool(10);
		CompletionService<Integer> completionService =new ExecutorCompletionService<Integer>(threadPool2);
		for(int i=0;i<10;i++){
			final int seq=i;
			completionService.submit(new Callable<Integer>(){
				public Integer call() throws Exception {
					Thread.sleep(new Random().nextInt(5000));
					return seq;
				}});
		}
		for(int i=0;i<10;i++){
			try {
				System.out.println(completionService.take().get());
			} catch (InterruptedException e) {
				e.printStackTrace();
			} catch (ExecutionException e) {
				e.printStackTrace();
			}
		}
	}

}
